3M Heavy-Wall Flame-Retardant Cable Sleeve HDT-6000-48A, Black, cable range of 2.1in. - 4.8 in. O.D., 4 ft. length, 5 per case

3M™ Heat Shrink Cable Sleeve HDT is a flexible, heavy wall tubing that provides abrasion, corrosion and chemical resistance. This sleeve has a 3:1 shrink ratio and offers primary electrical insulation for 1 kV rated applications. The flame retardant polyolefin construction features a thermoplastic sealant that provides moisture seal protection.